President Trump is preparing to meet with North Korean leader Kim Jong Un in Singapore after thrashing six of America's closest allies in Canada, but "he left behind a West Wing where burned-out aides are eyeing the exits, as the mood in the White House is one of numbness and resignation that the president is growing only more emboldened to act on instinct alone," report Maggie Haberman and Katie Rogers at The New York Times. Trump "may soon be working with a thinned-out cast in the middle of Season 2, well before the midterm elections," they add, naming White House Chief of Staff John Kelly among those eying the door.

Kelly told visiting senators last week that the White House is "a miserable place to work," a person with direct knowledge of the comment tells the Times. Meanwhile, Trump, fixating on White House leaks and constantly working to ensure a measure of chaos in the West Wing, "has grown comfortable with removing any barriers that might challenge him — including, in some cases, people who have the wrong chemistry or too frequently say no to him," Haberman and Rogers report. With his number of formal advisers shrinking, Trump is increasingly calling outside advisers, especially Corey Lewandowski and longtime friend David Bossie, plus a kind of surprising name:

Among the president's other confidants is Scott Pruitt, the administrator of the Environmental Protection Agency. Mr. Trump has dismissed the advice of several aides who have tried to persuade him to fire Mr. Pruitt in light of the growing questions about misuse of his authority. The two speak frequently, and the president enjoys discussing his negative view of Jeff Sessions, the attorney general, with the embattled EPA leader. [The New York Times]

You can read more about the tumult at the White House and why Trump thinks it means he's winning — and some outside experts disagree — at The New York Times. Peter Weber

As anticipated, President Trump on Friday declared a national emergency in response to rising tensions between the United States and Iran, allowing him to complete the sale of over $8 billion worth of weapons to Iran's regional rival, Saudi Arabia, as well as the United Arab Emirates and Jordan, all despite congressional objections.

Congress had blocked the sale of offensive weaponry to Saudi Arabia and the UAE for months as a result of those countries' air campaigns in Yemen and other human rights abuses. But Trump used a loophole to circumvent Congress and go ahead with the sale.

The emergency declaration was met with bipartisan disapproval. Sen. Chris Murphy (D-Conn.), said there is no new emergency reason to supply Saudi Arabia with arms and "doing so only perpetuates the humanitarian crisis" in Yemen. Rep. Mike McCaul (R-Texas) called the decision "unfortunate" and said he would have preferred the Trump administration "utilize the long-established and codified arms sale review process."

Secretary of State Mike Pompeo said the sales were necessary to deter Iran, but the decision to side step Congress was a "one-time event." Tim O'Donnell

A federal judge in California issued a preliminary injunction on Friday temporarily blocking the government from constructing a wall in two sectors along the U.S.-Mexico border using funds diverted from the Defense Department, throwing a wrinkle into President Trump's national emergency declaration.

Construction was set to begin on Saturday, but the order — which applies specifically to two areas along the border near Yuma, Arizona, and El Paso, Texas, where a total of 51 miles of fencing was set to be built — will put that on hold. The construction of additional segments, announced too late for Friday's decision, will reportedly be taken up in June.

The judge, Haywood S. Gilliam, wrote that Congress's 'absolute' control over federal funding is an 'essential' feature of the United States government and that Trump's emergency declaration would "pose serious problems under the Constitution's separation of powers principles." The American Civil Liberties Union called the decision a "win for our system of checks and balances." Gilliam's ruling was in response to a lawsuit brought by the Sierra Club and the Southern Border Communities Coalition. Tim O'Donnell

Previous court rulings had determined Ohio's map of congressional districts, and Michigan's map of congressional and state legislative districts, needed to be redrawn ahead of the 2020 election due to unconstitutional gerrymandering, in both cases favoring Republicans. But the Supreme Court on Friday put these orders on hold.

The justices are currently reviewing two gerrymandering cases, one concerning North Carolina and one concerning Maryland, during which they will decide whether the court has a role in such a matter. Verdicts are expected to be reached in these cases by the end of next month. Read more at The Washington Post. Brendan Morrow

Missouri's governor signed into law a strict abortion ban on Friday, adding it to the list of states that would have a dramatically different abortion landscape if Roe v. Wade were overturned.

The law, which bans abortions at eight weeks of pregnancy, follows in the footsteps of four other states that have passed fetal "heartbeat" laws, as well as two states that have limited abortions to the middle of the second trimester, reports Axios.

At least six other states are currently considering restrictive abortion bills, as a nationwide momentum has led more bills to state legislatures. Six states have included "trigger laws," which are currently inactive but would go into effect banning all abortion the moment Roe is hypothetically overturned, reports CBS News.

But while Roe v. Wade remains a hot-button topic, experts say it's unlikely to be overturned — especially any time soon.

"The court just doesn't operate that way … This idea that you're going to force them to reconsider Roe v. Wade is just absurd," Pro-life lawyer James Bopp Jr. told Politico. "There's a lot of ill-informed hype on both sides about these measures … They'll never go into effect."

Caroline Fredrickson, with liberal legal group the American Constitution Society, told Politico that Chief Justice John Roberts would "probably prefer" the issue not be brought to the Supreme Court in the middle of an election. Marianne Dodson

The University of Oklahoma has been supplying false information to U.S. News & World Report for the last 20 years, reports CNN.

U.S. News & World Report, which creates the annual Best Colleges rankings, says the university has given "inflated" numbers on its alumni giving rates, of all things. Oklahoma will now be unranked in the 2019 rankings.

The university inflated its alumni giving rate by more than 4 percent, incorrectly claiming it was 14 percent instead of 9.7 percent. The alumni giving rate makes up 5 percent of the rankings formula, as it "measures student satisfaction and post-graduate engagement," reports CNN.

The school said it noticed the error in reporting in 2018 and immediately gave the accurate information to U.S. News. OU was ranked 97th in 2018 among both public and private institutions.

The revelation marks the second time in two years that a college has provided false information to U.S. News for several years, following Temple University's admission it had inflated information about its online M.B.A. program, per Inside Higher Ed. Marianne Dodson

The Maroon 5 frontman announced season 16 of The Voice would be his last as a coach, revealing the decision in an Instagram post Friday morning.

Levine has been with the talent competition show since its premiere in 2011 and is one of two judges, along with Blake Shelton, to remain as a coach during the show's 16 seasons. Levine and Shelton struck up a friendship and rivalry during the show's tenure, which has been credited as bolstering the show's success, reports People.

"Our friendship is and always will be one for the books," Levine wrote about Shelton on Instagram. "Whatever this whole surreal experience was, [I'm] just happy I got to experience it with you."

Levine ends his run on The Voice with three wins to his name, half of Shelton's six.

After the Department of Health and Human Services announced on Friday that it would scrap an Obama-era policy that expressly forbade health care providers from discriminating against transgender patients, advocacy groups and lawmakers alike began criticizing the move as damaging to a vulnerable group of Americans.

The pending change reverts regulations back to prohibiting discrimination solely based on sex, not gender identity. "When Congress prohibited sex discrimination, it did so according to the plain meaning of the term, and we are making our regulations conform," HHS Director of the Office for Civil Rights Roger Severino told The Washington Post.

Democrats who are running for president in 2020 wasted no time in decrying the Trump administration.

We cannot let this go unnoticed: The Trump administration is on a quest to turn back the clock on our #HealthCareRights and allow for widespread discrimination in health care for women and LGBTQ Americans. https://t.co/4Nuka4ha5A

The Trump Admin. is putting lives in jeopardy and undermining equal access to health care for all workers and all families, We will not sit quietly while the administration establishes separate and unequal policies that harm the transgender community.

The National Center for Transgender Equality has vowed to fight the proposed change — once the policy is rewritten it will surely face several legal challenges, something many 2020 Democrats suggested is necessary. Summer Meza

In a country dedicated to the proposition that all men are created equal, all have the right to pursue happiness, & it’s govt’s responsibility to secure those rights, We the People should not tolerate Trump’s active attacks against transgender protection. https://t.co/NHpwWogARu

Transgender people face enough challenges in the world. This proposal leaves them even more vulnerable. It's cruel, inhumane, and could be fatal. We're better than this. Everyone deserves a safe place to lay their head. https://t.co/oAaeHei6pZ